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Manual Lenox L5711U

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Summary
  • Lenox L5711U - page 1

    E 2007 Lennox Industries Inc. Dallas, T exas, USA ComfortSense t 5000 Series Models L571 1U and L5732U Programmable T ouch Screen Thermost at s OWNER’S GUIDE IMPORT ANT Read and save these instructions. 506067−01 2/2008 ...

  • Lenox L5711U - page 2

    P age 2 T able of Content s Thermostat Features Page 2 . . . . . . . . . . . . . . . . . . . . . . . . . . Thermostat Display Page 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Settings Page 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fan Settings Page 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lenox L5711U - page 3

    P age 3 S Override options allow you to easily override the pro- grammed schedule. S Same−schedule programming allows you to program a schedule for several days at once. No need to copy . S Armchair programming allows you to remove the thermo - stat from the wall while you program your schedules. Thermost at Display SYSTEM SELECT EMERGENCY HEA T ...

  • Lenox L5711U - page 4

    P age 4 Thermost at Display (Continued) TUE SHOWS CURRENT DA Y OF THE WEEK FA N SHOWS F AN SETTING INSIDE SHOWS CURRENT INSIDE TEMPERA TURE SET TO SHOWS CURRENT TEMPERA TURE SETTING SYSTEM SHOWS CURRENT SYSTEM POSITION TIME SHOWS CURRENT TIME OF DA Y , HOLD TIME REMAINING OR NUMBER OF V ACA TION DA YS REMAINING FOLLOWING SCHEDULE INDICA TES THA T T ...

  • Lenox L5711U - page 5

    P age 5 System Settings PRESS SYSTEM SELECT SETTING OF HEA T , OFF , COOL OR EM HEA T (HEA T PUMP SYSTEMS ONL Y) AM FA N SS M Y TE HEAT Se o t T Following Schedule SCHED HOLD CLOCK SCREEN MORE Inside TUE Outside AUTO SYSTEM SETTINGS The system setting options vary based on your heating and/or cooling type. HEA T  Thermostat controls heating syst ...

  • Lenox L5711U - page 6

    P age 6 Fan Settings PRESS F AN. SELECT SETTING: ON, AUTO OR CIRC. AM FA N SS M Y TE HEAT Se o t T Following Schedule SCHED HOLD CLOCK SCREEN MORE Inside TUE Outside AUTO F AN SETTINGS ON  Fan runs continuously . Use this setting for improved air circulation or for more efficient central air cleaning. AUTO  Fa n runs only when heating or cool ...

  • Lenox L5711U - page 7

    P age 7 Program Y our Heating and Cooling Schedule NOTE − The thermostat includes a battery which makes it pos- sible for you to remove the thermostat from the wallplate during program. See page 19. Y our thermostat can control up to four dif ferent schedule periods per day: W ake  T ime when you awaken and want your home at a comfortable temp ...

  • Lenox L5711U - page 8

    P age 8 Program Y our Heating and Cooling Schedule (Cont.) 3 − Select any combination of days to edit. Y ou may select multiple days. These should be days that you wish to follow the same schedule. Check marks appear next to the days that are selected. Af ter the first day is selected, the SCHED- ULE screen returns to the display . 4 − Press th ...

  • Lenox L5711U - page 9

    P age 9 Program Y our Heating and Cooling Schedule (Cont.) NOTE − The F AN setting can be programmed for ON, AUTO or CIRC for each period selected. See following page for more in- formation about fan setting options. 9 − Press DONE key when finished. Saving changes screen appears to indicate that schedule changes are being saved to the days sel ...

  • Lenox L5711U - page 10

    P age 10 Fan Schedule The F AN setting can be programmed for ON, AUT O or CIRC for each period selected: ON  Fan runs continuously . Use this setting for improved air circulation or for more efficient central air cleaning. AUTO  Fa n runs only when heating or cooling system is on. CIRC  Fan runs randomly approximately 35% of the time. Use ...

  • Lenox L5711U - page 11

    P age 11 Cancel a Schedule Period Y ou may wish to cancel a period to match your lifestyle. For example, if someone is always home during the day on T ues- day , you can cancel the LEA VE and RETURN periods to have the thermostat hold the W AKE temperature until the SLEEP period is reached. 1 − Press the SCHED key . The SCHEDULE screen will be di ...

  • Lenox L5711U - page 12

    P age 12 Set the Time 1 − Press the CLOCK key . The current time setting will be dis- played as shown below . 2 − Use the arrows to set the correct time. 3 − Press DONE key . IMPORT ANT − The current day of the week should be displayed correctly on this screen. If not, refer to the Advanced Settings section to correct the day of the week di ...

  • Lenox L5711U - page 13

    P age 13 Override T emperature SettingT emporary Hold Y ou may use the temporary hold function to override the pro- grammed temperature setting until the next scheduled period or until a particular time that you wish. 1 − Press the UP or DOWN arrow next to the temperature display to adjust the temperature as desired. NOTE − Hold T emperat ...

  • Lenox L5711U - page 14

    P age 14 Override T emperature SettingPermanent Hold Th e permanent hold function overrides the programmed temper- ature setting until the permanent hold is cancelled. 1 − Press the HOLD key . NOTE − Permanent Hold" appears on the screen under the cur- rent time. 2 − Use the UP and Down to adjust the temperature to the setting that ...

  • Lenox L5711U - page 15

    P age 15 Override T emperature SettingV acation Hold Y ou may use the vacation hold function to override the pro- grammed temperature setting for a designated number of days. 1 − Press the UP or DOWN arrow next to the temperature display to adjust the temperature as desired. NOTE − Hold T emperature Until" appears on the screen. The ...

  • Lenox L5711U - page 16

    P age 16 T emperature Recovery Feature Y our thermost at is equipped with a feature that accommodates recovery time to ensure your comfort. Recovery time is the time that it takes your heating and cooling equipment to recover from energy−saving settings programmed during away or asleep periods. Recovery time depends on local weather , your schedu ...

  • Lenox L5711U - page 17

    P age 17 Clean the Thermost at Screen The thermostat screen may be cleaned, if necessary . 1 − Press the SCREEN key . The thermostat locks the touch screen for 30 seconds to allow for cleaning. 2 − Use a damp cloth slightly moistened with water or household glass cleaner to clean the screen. IMPORT ANT − Do not spray any type of liquid direct ...

  • Lenox L5711U - page 18

    P age 18 Battery Replacement If your thermostat has batteries, a low battery warning flashes on the home screen for approximately 30 days. IMPORT ANT − Batteries should be replaced once per year to prevent leakage and to prevent loss of battery back−up in a pow- er outtage. Y ou may also wish to replace the batteries prior to leaving your home ...

  • Lenox L5711U - page 19

    P age 19 Battery Replacement (Continued) 3 − Remove the old batteries and insert three fresh AAA al- kaline batteries, as marked on the thermostat. BACK OF THERMOST A T BA TTERIES (3) + + + 4 − Align the terminal screw blocks with the pins on the back of the thermost at. 5 − Push the thermost at straight onto the wallplate until it snaps into ...

  • Lenox L5711U - page 20

    P age 20 Reminder T imers The reminder timers notify you when it is time to change the fur- nace filter , humidifier pad or ultraviolet lamp. When one of the set timers expires, a reset key appears on the home screen. Reset Timers 1 − Change" reminder appears on the screen when the timer expires. 2 − Press the RESET key to rest art the ...

  • Lenox L5711U - page 21

    P age 21 Built−In Compressor Protection The thermostat provides built−in compressor protection (mini- mum−off timer) that prevent s the compressor from restarting too early after a shutdown. The minimum−off timer is activated af ter the compressor shuts off. If there is a demand for compressor operation during the delay , the thermostat dis ...

  • Lenox L5711U - page 22

    P age 22 Out door T emperature If an optional out door temperature sensor has been installed with your thermosta t, the out door temperature is displayed in the low- er right corner of the home screen. If the temperature is not displayed and an outdoor temperature sensor has been inst alled, press the MORE key until the out side temperature is disp ...

  • Lenox L5711U - page 23

    P age 23 Screen Lock Y ou can fully or partially lock the keys on the touch screen. See the Advanced Settings section for more information on this fea- ture. If the thermostat displays a Screen Locked" message, your thermostat screen is either fully or partially locked. Partially Locked Screen When partially locked, all touch screen keys ar ...

  • Lenox L5711U - page 24

    P age 24 Advanced Settings Y our thermostat has many advanced settings that can be used to match your desired use of this important tool. These items have been set by the inst aller during the inst aller set−up process; how- ever , use the following information to customize the settings for your use. Use the following steps and the User Set−Up ...

  • Lenox L5711U - page 25

    P age 25 Advanced Settings (Continued) 4 − Refer to the figure below to see how the thermost at buttons are used to make selections. 5 − Refer t o the t able on the following pages to make proper set− up choices for your application. 6 − When all set−up selections have been made, press the DONE key to save your settings. The thermostat di ...

  • Lenox L5711U - page 26

    P age 26 Advanced Settings (Continued) User Set− Up No. Set−Up Name Selection Description 0120 Date (Y ear/first) Select first two digits of current calendar year ( 20 for 20 07, etc.) 0130 Date (Y ear/last) Select last two digits of current calendar year ( 07 for 20 07 , etc.) Options: 01 to 99 available. 0140 Date (Month) Select number that r ...

  • Lenox L5711U - page 27

    P age 27 Advanced Settings (Continued) User Set− Up No. Selection Description Set−Up Name 0330 Daylight Sav- ings Options: 0 − Off. Thermost at time is not automatically adjusted for DST . 1 − On. Thermostat time is auto- matically adjusted for Daylight Savings in the Fall and S pring (using the pre−2007 DST calen- dar) 2 − On. Thermost ...

  • Lenox L5711U - page 28

    P age 28 Advanced Settings (Continued) User Set− Up No. Selection Description Set−Up Name 0520 UV Lamp Re- placement Re- minder Select option for UV lamp re- placement reminder timer . Op- tions: 0 − Reminder is off 1 − 365 run time days 0540 Number of Peri- ods Select option for number of scheduling periods. Options: 2 − T wo periods (wa ...

  • Lenox L5711U - page 29

    P age 29 T roubleshooting Tip s If... Then... Key to the right of the screen key is blank. MORE key remains blank unless the Furnace Filter Change Reminder has been turned on. See User Set−Up Number 0500. Display is blank. Check that fresh AAA alkaline batteries are installed as marked on the thermostat. T emperature settings do not change. Check ...

  • Lenox L5711U - page 30

    P age 30 T roubleshooting Tip s If... Then... Cooling system does not turn on. ¯ Press SYSTEM key to set to Cool. ¯ Check the cool temperature setting to be sure it is set below the room temperature and Cool On" is displayed solidly on the screen. ¯ Make sure circuit breaker is not tripped. ¯ Check the power switch at the heating and/or ...

  • Lenox L5711U - page 31

    P age 31 T roubleshooting Tip s If... Then... Cool On" is not displayed on the screen. Set the System setting to Cool and set the temperature setting below the room tempera- ture. If Cool On" is shown solidly in the dis- play , but the cooling system does not turn on, see Cooling system does not turn on" suggestions at the t ...

  • Lenox L5711U - page 32

    P age 32 T roubleshooting Tip s If... Then... Heating system does not turn off and the heat temperature setting is set below the room temperature (Heat On" is not shown in display .) Check Installer Set−Up Number 170: Heating and/or Cooling T ype*. Make sure the setting matches the installed heating and/or cooling system. Red LED is lit i ...

Manufacturer Lenox Category Thermostat

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Lenox L5711U by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Lenox L5711U.

A complete Lenox manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Lenox L5711U - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Lenox L5711U, FAQ or common problems, i.e. places that are most often searched by users in each manual
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